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Update llama.py

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Daniel Han-Chen 2024-01-23 01:37:36 +11:00
commit 7e4140ebfc
1 changed files with 2 additions and 2 deletions
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unsloth/models/llama.py
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@ -135,11 +135,11 @@ def LlamaAttention_fast_forward_inference(
# cos, sin = self.rotary_emb(Vn, seq_len = kv_seq_len)
# Qn, Kn = inplace_rope_embedding(Qn, Kn, cos, sin, position_ids)
h = head_dim // 2
RH_Q = torch.empty((n_heads, head_dim), dtype = dtype, device = "cuda")
RH_Q = torch.empty((n_heads, 1, head_dim), dtype = dtype, device = "cuda")
RH_Q[:, :, :h] = Qn[:, :, h:]; RH_Q[:, :, h:] = Qn[:, :, :h]; torch.neg(RH_Q[:, :, :h], out = RH_Q[:, :, :h]);
Qn *= cos; Qn.addcmul_(RH_Q, sin);
RH_K = RH_Q[:n_kv_heads, :] # torch.empty((n_kv_heads, head_dim), dtype = dtype, device = "cuda")
RH_K = RH_Q[:n_kv_heads, :, :] # torch.empty((n_kv_heads, head_dim), dtype = dtype, device = "cuda")
RH_K[:, :, :h] = Qn[:, :, h:]; RH_K[:, :, h:] = Kn[:, :, :h]; torch.neg(RH_K[:, :, :h], out = RH_K[:, :, :h]);
Kn *= cos; Kn.addcmul_(RH_K, sin);